Amazing we can't say for sure on this. When I think about the ideal way to test this I start to get an idea of why this is actually hard to know, but still, if we knew anything about cycling I would have thought we knew this.
Will we know? I would love to see a max effort test on this.
Drum tests for the tires
Real world Aero with those pitot tube set ups
Computer CFD for theoretical aero
Real world roll down tests
Real world constant power tests
etc.
Would they correlate? Even F1 can have correlations problems with wind tunnel vs real world.
Quote:
Originally Posted by Mark McM
So, if we hold the environment conditions constant, including a road that is representative of typical paved roads, and loads typical of single bicycles, and pressures typical to those used by the average cyclist, can we still say that a typical 32mm tire rolls faster than a typical 23mm tire? Maybe, maybe not.
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